Bomb or similar device



March 23, 1943. G. zlNT 2,314,678

BOMB 0R SIMILAR DEVICE Filed oct. 21, i941 2 sheets-sheet 1 o Il E: E,

48 E 1 El 4&6

March 23, 1943. G. ZINT 2,314,678

BOMB OR SIMILAR DEVICE Filed Oct. 2l 1941 2 Sheets-Sheet 2 Patented Mar. Z3, v1943 amm UNirsDgsrArEs eA'rsNr orgies i i -.Bohm 032m DEVICE I George Zint, Wapakoneta, Ohio Application October 21, 1941, Serial No. 415,962 claims. (ci. 1oz-2) The invention relates primarily to bombs to be dropped from aircraft, and the present disclosure of the invention is of the parachute type.

The principal object of the invention is to provide a novel ring mechanism which will delay ilring of the explosive charge sufciently to allow the bomb to reach the earth from a predetermined altitude and will then effect explosion of said charge, and the same mechanism will operate to delay ilring of the bomb for a desired time after it has landed. if said bomb be released from the aircraft at a lower altitude.

Another object is to provide a novel construction which is rather simple and inexpensive, yet eiilcient and reliable. i

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, description being accomplished by reference to the accompanying drawings.

Figure 1 is a side elevation showing the bomb immediately after leaving the aircraft.

Fig. 2 is a side elevation illustrating the parachute opened to control the descent.

Fig. 3 is a vertical sectional view partly in elevation showing the `normal set relation of the various elements.

Fig. 4 is a fragmentary horizontal section on line 4 4 of Fig. 3.

Fig. 5 is an enlarged fragmentary section similar to Fig. 1 but illustrating the firing mechanism about to re the detonator.

While only one form of the invention has been illustrated in the drawings and will be rather specifically described, it is to be understood that variations may be made within the scope of the invention as claimed. Moreover, it is possible to make use of the novel firing mechanism in bombs and the like other than those of aerial nature.

An explosive-carrying structure is shown in the form of a casing 6 divided by a horizontal partition 1, the space below said partition being utilized to carry the explosive 8, while the space above said partition accommodates firing mechanism as will be hereinafter described.

A base 9 is suitably secured upon the partition 'l and is provided at one end with an upstanding casing I 0. A lug II projects upwardly from the other end of the base 9 and is provided with a recess I2 which opens away from said casing. said recess containing a detonator I3. An opening I4 is formed in the lug II and extends from the recess I2 through the side 0f said lug toward the casing I0. The detonator I3 is secured'in place in the recess I2 by means oi a screw cap I5, and this cap also secures one'end of a fuse I6 in contactyvith said detonator. The other end ofthe fuse I6 extends to an opening I1 in the partition 'I and vis suitably coupled rto said partition as denoted at I8. Thus, when the. detonator I3 is fired, it ignites the fuse I 6 and this fuseignites the explosive charge8.

An angular arm I8 is secured to and projects upwardly from the base 9 between the casing Il) and the lug II. This arm is formed witha lower opening I9 alined with the opening It of the lug ii, and said arm is also formed with an upper opening i9' for a purpose to appear. The side of the casing III toward the arm i3 is provided with an opening 20 alined with the openings M ,and I 9, and the opposite side oi said casing is formed with another opening 2i. A ring pin 22 for the detonator I 3 extends slidably through the openings l, i 9 and 20, said provided with an operating spring 23 against the collar 2t on said pin against a portion oi the arm I8. A link 25 preferably formed from a tubular piece oi zinc is connected with the inner end of the ring pin 22, passes through the opening 2i, and is held against inward movement by means of a pin 28. 'Ihus, this link 25 holds the ilring pin 22 normally against operation. The outer end oi the link is preferably enclosed in a cap 2l threaded upon a boss 28 on the casing iii. The opposite side of this casing is preferably provided with Which 8.658

a tapered boss 29 normally engaged by a cap 3l) on the firing pin to prevent leakage of any of the acid hereinafter described.

The interior oi the casing i0 includes an upper chamber 3| and a lower chamber 32, and said casing is provided with an internal ledge 33 between said chambers. Resting upon this ledge is a frangible container 34 preferably formed from glass, said container holding a quantity of acid 34' (preferably muriatic) to eat the link 25 when said container is broken, thereby releasing the ring pin 22 so that it may re the detonator i3. A striker rod 35 is employed to break the container 34 at the prcuer time. one end of this rod being slidable in the above described opening i9' of the arm I8 while the other end oi said rod is similarly received in an opening 36 in the casing I 0. An actuating spring 3l is provided for the rod 35 but this rod is normally held against operation by means of a spring-heid latch 38 engaging a notch 39 in said rod as seen in Fig, 3. For guiding the latch 38, I have shown a lug 40 on the upper end of arm I8. When this iring pin being and reacts latch is released, the springl 31 forces the striker rod 35 inwardly as seen in Fig. 5 thereby shat.

tering the containerr34 and spilling the acid 34' into the lower chamber 32, where it eats away the link 25 to release the ring pin 22.

To prevent any leakage of acid through the opening 36, the casinglll is by preference provided with a tapered nipple `4l tightly engaged by a cap 4l' on the striker rod 35 when this rod is moved to its operativeposition.

Slidable vertically in the upper portion of the chamber 3l is a plunger 42 which rests normally upon the container 34, and ii this container be provided with a cork or. the like 43, the plunger will hold said Icork in place. A compression spring 44 acts downwardly upon the plunger 42 and reacts against a cap 45 which closes the upper end of the casing. The spring-pressed plunger thus not only holds the acid container 34 tightly in place but when said container is shattered by the striker pin 35, said plunger will force the fragments of glass and the acid 34' downwardly, the acid entering the lower chamber 32 and immediately starting to eat the link 25.

connected with the latch 3s is a cable or the' like 46 which passes through an opening 46' in the top of the casing 6, said cable being connected to the shroud lines 41 of a parachute 48. As the entire device is released from an aircraft, an eye 49 at the top ofthe parachute, is the last part to be released, with the result that suillcient jerk is given upon the cable 41 to release the latch 38. Thus, the striker pin 35 immediately acts to shatter thev acid container 34, the acid enters the lower chamber 32 of the casing lll and starts to eat the link 25. When this link is eaten substantially in two, the spring 23 comes into play to break the remaining portion of the link and operate the firing pin 22. This ilring lpin res the detonator I3 which in turn ilres the fuse I6, and the latter res the charge 8. It is, of course, known how long it will take the acid to eil'ect release of the firing pin 22. It is thus known how much time must be allowed for the bomb to reach the earth before exploding, and by releasing said comb at the proper altitude, it may be made to explode substantially upon striking the earth, or a short time before or after striking, as most advantageous.

I claim:

1. In a bomb or similar device having a detonator and a spring-actuated firing pin for said detonator, a link alined with said firing pin, said link being anchored at one end and having its other end directly connected to said ring pm to hold the latter against operation, a chamber containing at least -a portion of said link, an acid for eating said link to release said ring pin, a i'rangible container containing said acid and mounted in position to spill said acid into said chamber when broken, and means for breaking said frangible container.

2. In a bomb or similar device, an explosivecarrying structure, a detonator carried by said structure, a casing secured to said structure and having two openings from its interior to its exterior, a spring-actuated ring pin passing slidably through one of said openings and positioned in operative relation with said detonator, a link connected with said ring pin and normally holding the same against operation, said link having at least a portion within said casing, a quantity o! acid to eat said link and release said ring pin, a frangible container in said casing and containing said acid, said frangible container having a portion opposite the other of said openings, a spring-actuated striker having an inner end received in said other of said openings to strike and break said frangible container, and a latch normally engaged with said striker and holding the same against operation.

3. In a bomb or similar device, an explosivecarrying structure, a detonator carried by said structure, a casing secured to said structure and having upper and lower communicating chambers, said casing having an upper opening from its exterior to said upper chamber and a lower opening from its exterior to said lower chamber, said casing being also provided with an internal 'ledge between said chambers, a spring-actuated ring pin extending slidably through said lower opening and operatively positioned with respect to said detonator, a link connected with said firing pin and normally holding the same against operation, said link having at least a portion in said lower chamber, a quantity of acid to eat said link and release said firing pin, a frangible container in said upper chamber resting upon said ledge and containing said acid, a spring-actuated striker having an inner e'ndvreceived in said upper opening to strike and break said frangible container, and a latch normally holding said striker against operation.

\ 4. A structure as specified in claim 3; together with a plunger in said upper chamber resting upon said frangible container, and a spring acting downwardly upon said plunger to force the acid into said lower chamber when said container is broken.

5. In a bomber similar device, a base, a casingsecured to and projecting upwardly from one end of said base, a lug projecting upwardly from the other end of said base, said lug having a detonator-receiving recess which opens L away from said casing and( an opening extending from said recess through the side of said lug toward said casing, a detonator in said recess and a fuse contacting with said detonator, means securing said detonator and fuse in place, an arm secured to and projecting upwardly from said base between said lug and said casing, said arm and casing having openings alined with said opening oi' said lug, a spring-actuated ring pin slidable in these three openings for ring said detonator, a link connected with said firing pin and normally holding it against operation, said link havingat least a portion in the lower end of said casing, a quantity of acid to eat said link and release said firing pin, a frangible container mounted in the upper portion of said casing and containing said acid, a spring-actuated striker rod for breaking said container, said casing and arm having openings in which said striker rod is slidably mounted, a latch mounted on said arm and normally engaging said striker rod to hold same against operation, and a releasing element connected with and extending from said latch.

' GEORGE ZINT. 

